Screening device for vehicle glass panel with two shade curtains and corresponding motor vehicle

The device has two occultation webs (12, 22) mounted on both sides of a glazed surface. The webs are deployed towards each other in opposite directions, to occult the surface completely. The lengths of the deployed webs are reduced by half. A central portion of the glazed surface is not occulted in occultation intermediate position. The webs are deployed or folded simultaneously, under the effect of a single driving action. An independent claim is also included for a motor vehicle comprising a glazed surface occultation unit.